9728663067 has 12 divisors (see below), whose sum is σ = 14131021320. Its totient is φ = 6449540928.

The previous prime is 9728663051. The next prime is 9728663101. The reversal of 9728663067 is 7603668279.

It is not a de Polignac number, because 9728663067 - 2⁴ = 9728663051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9728663267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3017838 + ... + 3021059.

It is an arithmetic number, because the mean of its divisors is an integer number (1177585110).

Almost surely, 2^9728663067 is an apocalyptic number.

9728663067 is a deficient number, since it is larger than the sum of its proper divisors (4402358253).

9728663067 is a wasteful number, since it uses less digits than its factorization.

9728663067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6039082 (or 6039079 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The square root of 9728663067 is about 98633.9853549475. The cubic root of 9728663067 is about 2134.7698192209.

The spelling of 9728663067 in words is "nine billion, seven hundred twenty-eight million, six hundred sixty-three thousand, sixty-seven".